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. Author manuscript; available in PMC: 2009 Feb 15.
Published in final edited form as: J Org Chem. 2008 Jul 9;73(16):6059–6072. doi: 10.1021/jo800713m

TABLE 4.

Dissociation Rate Constants of 4-O-Benzyl GlcN Sulfoforms

compd a kP, s−1b
2a (GlcNAc-6S) c 151±12
3a (GlcNAc-3S) c 189±11
4a (GlcNS) d 100±9
6a (GlcNS-3S) e 741±24
7a (GlcNS-6S) e 239±11
a

BU4N counterions.

b

95% confidence limits. CID conditions:

c

100 mVpp, 49.016 kHz

d

100 mVpp, 54.273 kHz

e

100 mVpp, 90.806 kHz. Bath gas temperature = 298 K; gas pressure = 1.4 × 10−4 Torr.